2021 AUDI Q8 engine

Instrument cluster

Depending on vehicle equipment, the RS Per-
formance or RS Runway layout will be automati-
cally set when switching into the RS modes
=>page 111.
Adjusting the additional display
Depending on the vehicle equipment, the addi-
tional displays that can be selected may vary.
» Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Configure.
> Select the desired additional display.
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab > [=] button > Reduced display.
Coolant temperature
display
The coolant temperature display @) > page 12
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
eration, and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the g indicator light in the instru-
ment cluster display turns on, the coolant tem-
perature is too high > page 248.
@) Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
14
— The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer (2) 9 page 12 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
cates the maximum permissible engine speed for
all gears once the engine has been broken in. Be-
fore reaching the red zone, you should shift into
the next higher gear, select the "D" or "S" selec-
tor lever position, or remove your foot from the
accelerator pedal.
Engine speed limitation
If the BA indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation is deactivated if you
release the accelerator pedal while the engine is
at normal operating temperature.
If the engine speed limitation was activated by
an engine control malfunction, the By indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam-
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected.
C) Note
The needle in the tachometer may only be in
the red area of the gauge for a short period of
time before there is a risk of damaging the
engine. The location where the red zone be-
gins varies depending on the engine.
Odometer
The trip odometer and odometer are displayed in
the status bar G) > page 12.

4M8012721BF
Instrument cluster

The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances. The odometer shows the total
distance that the vehicle has been driven.
Resetting the trip odometer
> Select on the instrument cluster: vehicle func-
tions tab > | button > Reset mi.
@) Tips
Distances are displayed in mi (miles) or km
(kilometers).
Outside temperature
display
The outside temperature is displayed in the sta-
tus bar ©) > page 12.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed in
the instrument cluster may be slightly higher
than the actual temperature outside due to heat
radiating from the engine.
At temperatures below 41 °F (+5 °C), a snowflake
symbol appears in front of the temperature dis-
play > A\.

ZA\ WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.

Engine oil temperature
indicator
Depending on the vehicle equipment, the engine
oil temperature 7 may be indicated by a bar in
the instrument cluster.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine oil temperature is be-
tween 176 °F (80 °C) and 248 °F (120 °C) under
normal driving conditions. The engine oil temper-
ature may be higher if there is heavy engine load
and high temperatures outside. This is not a
cause for concern as long as the E or = indica-
tor lights do not turn on.
Boost indicator
Applies to: vehicles with boost indicator
Depending on vehicle equipment, the current en-
gine load (meaning the current boost pressure)
may be indicated by a bar in the instrument clus-
ter.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
Shift light indicator
Applies to: RS models
The shift light indicator informs the driver when
the RPM limit is reached.
> Select the RS Performance or RS Runway lay-
out if necessary > page 13.
The shift light indicator is displayed with green,
yellow and red ranges in the upper areas of the
tachometer. The shift light indicator will blink red
when approaching the engine speed limit. Shift
to the next highest gear at the right time.
Sport displays
Applies to: RS models
Various sport displays, such as a G meter or tire
pressure indicator, may be available depending
on vehicle equipment.
Opening sport displays in the instrument
cluster
> Select in the instrument cluster: Vehicle func-
tions tab > =| button > Sport displays.
> Turn the left thumbwheel on the multifunction
steering wheel until the desired sport display
appears in the instrument cluster.
Opening sport displays in the MMI
> Applies to MMI: Select on the home screen: VE-
HICLE > RS monitor.
15
>

Instrument cluster

> Browse to the desired display if necessary.
G meter
The G meter displays the longitudinal and lateral
acceleration. The current values are displayed in
the instrument cluster while driving. The maxi-
mum values that are reached are stored and dis-
played when the vehicle is stationary. Only the
maximum values that are reached are displayed
in the MMI.
> To reset the stored values, press and hold the
left thumbwheel on the multifunction steering
wheel for one second.
Tire pressure
The tire pressure monitoring system displays the
current tire pressures and temperatures. Also see
= page 276, Tire pressure monitoring system.
Engine data
The engine data in the instrument cluster shows
which percentage of the maximum output or
maximum torque is currently being used.
Temperature
The temperature display in the MMI shows the
temperature of various fluids and vehicle compo-
nents, such as the engine oil or sport differential.
Inclinometer
The inclinometer in the MMI shows the sideways
and lengthwise angle of the vehicle in relation to
the horizon. It shows both the current values and
the maximum values that were reached
=> page 108.
Vehicle functions
LO TaV TN]
The trip computer is displayed in the first tab of
the driver information system. Additional vehicle
functions can be accessed depending on the vehi-
cle equipment.
> Press the =] button on the multifunction steer-
ing wheel.
— Trip computer > page 16
— Reduced display > page 14
16
— Reset trip odometer > page 14
— Sport displays > page 15
—Lap times > page 129
— Lap statistics > page 130
— Acceleration measurement > page 130
On-board computer
Resetting values to zero
Requirement: the Consumption, Short-term
memory, or Long-term memory display must be
selected.
> To reset the values in one of the memories to
zero, press and hold the left thumbwheel on
the multifunction steering wheel for one sec-
ond, or
> Select on the instrument cluster: vehicle func-
tions tab > I button > Reset mi.
Depending on the vehicle equipment, you can call
up the following displays in the on-board com-
puter one at a time by turning the left thumb-
wheel on the multifunction steering wheel:
— Time and date > page 233
— Average consumption > page 16
— Short-term memory overview
— Long-term memory overview
— Energy consumers > page 17
— Driver assistance
— Traffic sign recognition and traffic light infor-
mation
Short-term memory and long-term memory
The short-term memory collects driving informa-
tion from the time the ignition is switched on un-
til it is switched off. If you continue driving within
two hours after switching the ignition off, the
new values will be included when calculating the
current trip information.
Unlike the short-term memory, the long-term
memory is not erased automatically. You can se-
lect the time period for evaluating trip informa-
tion yourself.
Average consumption
The current consumption can be shown using a
bar graph. The average consumption stored in >

Warm and cold

Applies to: vehicles with 4-zone automatic cli-
mate control: You can press JJ in the rear control
panel multiple times to adjust the air distribution
based on the direction of the arrow.
® Defrosting
The windshield and side windows are defrosted
or cleared of condensation as quickly as possible.
Align the outer air vents with the side windows.
The maximum amount of air flows mainly from
the vents below the windshield. Recirculation
mode switches off. The temperature should be
set at 72 °F (+22 °C) or higher. Depending on the
outside temperature, the A/C cooling mode may
automatically switch on.
& Rear window defogger
The rear window defogger only operates when
the engine is running. It switches off automati-
cally after 10 to 20 minutes, depending on the
outside temperature.
To prevent the rear window defogger from
switching off automatically, press and hold the
button for more than three seconds. It will re-
main on until the ignition is switched off.
Auto
/& Recirculation mode
In recirculation mode, the air inside the vehicle is
circulated and filtered. This prevents the unfil-
tered air outside the vehicle from entering the
vehicle interior > A\.
Pressing <> switches recirculation mode on or
off manually.
AUTO
When switched on, automatic recirculation <3
controls the recirculation mode automatically.
You must press the & button if fog forms on the
windows.
« Seat heating
Applies to: vehicles with heated seats
The seat heating temperature can be set at mul-
tiple levels. Press 4 once to switch on the highest
level. Press «/ again to decrease the temperature
one level at a time. The seat heating is switched
off if the button is not illuminated.
92
£) Seat ventilation
Applies to: vehicles with seat ventilation
The seat ventilation intensity can be set to multi-
ple levels. Press 2) once to switch on the highest
level. Press 2) again to decrease the heat level
one level at a time. The seat ventilation is switch-
ed off if the button is not illuminated.
@ Child safety lock*
If 8 turns on in the control panel in the rear, the
child safety lock is active and operation is blocked
=> page 45.
Ionizer
Applies to: vehicles with ionizer
Hazardous particles and germs in the air may be
reduced through ionization. This helps to im-
prove the air quality for individuals in the passen-
ger compartment.
&" Fragrance
Applies to: vehicles with fragrance function
The fragrance function will dispense a scent in
the vehicle interior. It is dispensed through the
front outer vents. This will produce a pleasant
scent. The fragrance is time-delayed, especially
at low or high temperatures. You can adjust the
fragrance function > page 93.
Residual heat
The residual heat from the coolant is used to
heat the vehicle interior. To use this function,
press and hold the ®% button for more than two
seconds while the ignition is switched off. The
function switches off automatically after about
15 minutes.

Z\ WARNING
— You should not use the recirculation mode
for an extended period of time, because no
fresh air is drawn in and the windows can
fog when cooling mode is switched off. This
increases the risk of an accident.
— Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the seat heating* function. To reduce
the risk of injury, these individuals should
not use seat heating*.

4M8012721BF
Warm and cold

@) Note
To reduce the risk of damage to the seat heat-
ing* elements, do not kneel on the seats or
place heavy pressure on one area of the seat.
@) Tips
— If the front passenger's seat heating” is
turned on, it will not turn on again automat-
ically if more than 10 minutes have passed
between switching the ignition off and on
again.
— Only use the fragrance function* in modera-
tion and take any other passengers and ani-
mals into consideration when using the
function. An overlap of different scents or
odors could cause discomfort. If there is
discomfort, reduce the intensity or switch
the fragrance function* off. Only use fra-
grances that are approved by Audi.
Adjusting the vents
You can open and close the vents using the
thumbwheels. The levers adjust the direction of
the airflow from the vents.
Additional settings
You can adjust additional settings.
> Applies to: MMI: Select on the home screen:
VEHICLE > Air conditioning > ©}.
Fragrance
Applies to: vehicles with fragrance function
Using Fragrance selection, you can select the fra-
grance and see the fill level of the fragrance.
You can select the strength of the scent with Fra-
grance level.
Footwell temperature*
You can adjust the footwell temperature for the
driver and front passenger.
Steering wheel heating
Sica ie Rola
Applies to: vehicles with steering wheel heating
> Press @ to switch steering wheel heating on or
off.
You can also operate the steering wheel heating
using the multifunction steering wheel
> page 31.
Applies to: vehicles with steering wheel heating
@& Steering wheel heating: on / Steering wheel
heating: off
This message appears if you have switched the
steering wheel heating on or off.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the engine
compartment or at the front or back of the hood.

Symbol |Meaning

Warning: the A/C system must only
be serviced by qualified technicians. A
Refrigerant type
te
ot
Lubricant type

Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)

The A/C system must only be serv-

2
a3] iced by qualified technicians. >

93

Warm and cold

& Flammable refrigerant

Make sure all components are dis-
posed of correctly and never install
q components in the vehicle that have
been removed from old vehicles or
taken from recycling.

Lubricant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant oil used in the vehicle’s A/C system. For the
refrigerant oil quantity, refer to the Technical Da-
ta > page 314.

To ensure secure and safe operation, the A/C
system must only be serviced by qualified
technicians and certified technicians (SAE
standard J2845).

— Never repair the A/C system evaporator with
components from old vehicles or from recy-
cling.
— New replacement evaporators for portable
A/C systems must be certified and labeled
as such, so that they comply with the SAE
standard J2842 HFO-1234yf and R744.
94

4M8012721BF
Driving

Driving
Starting the vehicle
pyr Told T ola (ela)



Fig. 83 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
> Press and hold the brake pedal.
> Press the [START ENGINE STOP] button. The
engine will start.


Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, the start-
ing procedure stops automatically after a short
time. If this is the case, repeat the starting pro-
cedure after approximately 30 seconds.
Stopping the engine
> Bring the vehicle to a full stop.
> Press the [START ENGINE STOP] button. The


engine will switch off.
Applies to: vehicles with steering lock: The steer-
ing is locked when you turn off the engine with
the selector lever in the “P” position and open
the driver's door. The steering lock helps prevent
vehicle theft.
Stopping the engine in an emergency
If necessary in an emergency, the engine can also
be stopped while driving using the emergency off
function*.

> Press the [START ENGINE STOP] button twice in
a row or press and hold it one time.

Switching on and off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:

> Press the [START ENGINE STOP] button without
pressing the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— The Start/Stop system must have stopped the
engine.
— You must have left the vehicle for longer than
30 seconds.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

Z\ WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious injuries.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 96.
CG) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You
could damage the engine.


95

Driving

— If the engine has been under heavy load for
an extended period of time, heat builds up
in the engine compartment after the engine
is switched off and there is a risk of damag-
ing the engine. For this reason, let the en-
gine run at idle for approximately two mi-
nutes before shutting it off.
G) Tips
— Brief noises are normal when starting and
stopping the vehicle and are no cause for
concern.
— For up to 10 minutes after stopping the en-
gine, the radiator fan may turn on again au-
tomatically or it may continue to run, even if
the ignition is switched off.
— It may not be possible to start the vehicle in
extremely low temperatures.
— Power will be fully available once the engine
is at operating temperature.
Messages
= Engine start system: malfunction! Please
contact Service
Do not switch the ignition off because you may
not be able to switch it on again. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
FJ Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
| Remote control key: key not detected. Is the
key
still in the vehicle?
The vehicle key was removed from the vehicle
while the engine is running. If the vehicle key is
no longer in the vehicle, you cannot switch the ig-
nition on or start the engine once you stop it. You
also cannot lock the vehicle from the outside.
Remote control key: hold back of key
against the designated area. See owner's man-
ual
96
The battery in the vehicle key may be drained or
there may be a malfunction. To start the vehicle,
you must also hold the vehicle key against the lo-
cation shown ?) > page 95, fig. 83.
If the malfunction remains, drive immediately to
an authorized Audi dealer or authorized Audi
Service Facility to have the malfunction correct-
ed.
When driving
Starting to drive, stopping, and parking
Starting from a stop
> Press and hold the brake pedal.
> Start the engine.
> Select a gear.
> Release the parking brake.
> Release the brake pedal. The vehicle may roll.
» Press the accelerator pedal to accelerate.
Securing the vehicle against rolling
Secure your vehicle to prevent it from rolling be-
fore exiting the vehicle.
> Set the parking brake.
> Select the “P” selector lever position.
> If parking on a steep road, turn the steering
wheel so that your vehicle will roll against the
curb in case it should start to move.
If one of these measures is not possible, for ex-
ample because there is no vehicle power, you
must secure your vehicle against rolling using ad-
ditional measures.
> Only park the vehicle on a level surface.
> Use suitable objects to block the front and rear
wheels.
Set the parking brake before selecting the “P” se-
lector lever position. This prevents too much
stress from being placed on the locking mecha-
nism when parking on a steep surface.

ZA WARNING
— Always set the parking brake when leaving
your vehicle, even if for a short period of >